Home / 99,237.15-136,917.09-56,209.80

Finding the Fourth Proportional to 99,237.15, 136,917.09 and 56,209.80

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Solution

The fourth proportional to 99,237.15, 136,917.09 and 56,209.80 is: 77,552.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,237.15 : 136,917.09 = 56,209.80 : x
  2. Step 2: Convert to fraction form
    99,237.15/136,917.09 = 56,209.80/x
  3. Step 3: Cross multiply
    99,237.15x = 136,917.09 × 56,209.80
  4. Step 4: Simplify right side
    99,237.15x = 7,696,082,245.48
  5. Step 5: Solve for x
    x = 7,696,082,245.48/99,237.15
  6. Step 6: Final answer
    x = 77,552.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.